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One-Plane Glide-Symmetric Holey Structures for Stop-Band and Refraction Index Reconfiguration

1
Department of Signals, Systems and Radiocommunications, Universidad Politécnica de Madrid, 28040 Madrid, Spain
2
Division of Electromagnetic Engineering, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
*
Author to whom correspondence should be addressed.
Symmetry 2019, 11(4), 495; https://doi.org/10.3390/sym11040495
Received: 1 March 2019 / Revised: 29 March 2019 / Accepted: 1 April 2019 / Published: 4 April 2019
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Abstract

This work presents a new configuration to create glide-symmetric structures in a single plane, which facilitates fabrication and avoids alignment problems in the assembly process compared to traditional glide-symmetric structures based on several planes. The proposed structures can be printed on the metal face of a dielectric substrate, which acts as a support. The article includes a parametric study based on dispersion diagrams on the appearance of stop-bands and phase-shifting by breaking the symmetry. In addition, a procedure to regenerate symmetry is proposed that may be useful for reconfigurable devices. Finally, the measured and simulated S parameters of 10 × 10 unit-cell structures are presented to illustrate the attenuation in these stop-bands and the refractive index of the propagation modes. The attenuation obtained is greater than 30 dB in the stop-band for the symmetry-broken prototype. View Full-Text
Keywords: glide symmetry; single plane; stop-band; periodic structures; higher symmetries; refractive index glide symmetry; single plane; stop-band; periodic structures; higher symmetries; refractive index
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Tamayo-Dominguez, A.; Fernandez-Gonzalez, J.-M.; Quevedo-Teruel, O. One-Plane Glide-Symmetric Holey Structures for Stop-Band and Refraction Index Reconfiguration. Symmetry 2019, 11, 495.

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